Roman B. Allahverdyan
Biography
Education
1978: M. Sc. in Physics, Yerevan State University, Yerevan, Armenia
1982 - 1985: Postgraduate student in the Physics Department of the Yerevan State University

Academic degree
Ph.D. in Physics 1987, “Radiophysics, included quants radiophysics” 01.04.03, Institute of Radiophysics and Electronics, Armenia
Doctor of Science, 2000, “Laser physics” Ա.04.21, Yerevan State University, Yerevan, Armenia

Professional experience
1978 - 1979: Senior laboratory assistant, Erevan State University (YSU), Physics faculty, Optics department (OD)
1979 - 1986: Engineer, DO, YSU
1986 - 1993: Senior Research Scientist, DO, YSU
1993 - 2000: Assistant Professor, DO, YSU
2000 - 2009: Assosiated Professor, DO, YSU
2000 – up to date: Head of research group, DO, YSU
2009 - 2013: Professor, DO, YSU
2013 – up to date: Head of Optics department

Academic courses
Physics of optical phenomena, Automation of physical experiment, Use of lasers in science and equipment, Modern problems of specialty, Optoelectronics and photonics, Physics of liquid crystals

Scale of professional interests
Nonlinear optics; physics of liquid crystals; hydrodynamics; photo-induced hydrodynamics; acoustic hydrodynamics; thermomechanics; critical phenomena

Participation in grant projects
  • INTAS 97 - 1672. Nonlinear optical response of liquid crystals in the presence of noise; Pattern formation and control of instabilities
    Short - term research grant of International Science Foundation, 1993
  • INTAS 97 - 1672, 1997 - 1998
  • INTAS 99-118, 1999 - 2001
  • CRDF CGP AP2 - 2302 - YE - 02, 2002 - 2004
  • Grant 11 - 1c194 of State Committee of Science of Republic of Armenia

    Languages
    Armenian, Russian, English

    Professional membership
    PhD and doctor of science 049 Committee Member, YSU
    Member of editorial board of magazine “YSU Scientific notes”
    Member of editorial board of magazine “Armenian Journal of Physics”

    Awards received
    Award of scientific - technical society of Armenia “For the best research work”, 1986
  • Roman B. Allahverdyan

    Head of Chair | Faculty of Physics - Chair of Optics
     
     

    Book

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    Լույսի բևեռացումը և նրա հետազոտումը | ԵՊՀ հրատ., Երևան, 2014 , 67 էջ
     

    Article

    T. Dadalyan, R. Alaverdyan, Zh. Ninoyan, O. Willekens, J. Beeckman, I. Nys

    Tuning the lasing wavelength of dye-doped chiral nematic liquid crystal by fluid flow | Liquid Crystals. 2017, 44, 2, pp. 372-378

    A. H. Gevorgyan, R. B. Alaverdyan, H. Gharagulyan, M. S. Rafayelyan, H. Grigoryan

    Diffusion in Liquid Crystals of Two Cholesterics with Different Pitches | Journal of Nanophotonics, Vol. 9(1), p. 093591, (doi:10.1117/1.JNP.9.093591), 2015 |

    R. B. Alaverdyan, M. R. Hakobyan, R. S. Hakobyan, Yu. S. Chilingaryan

    Гравитационный и термокапиллярный механизмы возбуждения гидродинамических движений в жидких кристаллах лазером с пространственно периодической структурой интенсивности | Известия НАН Армении, Физика, 2014, т.49, №3, с. 177-189

    R. B. Alaverdyan, M. R. Hakobyan, R. S. Hakobyan, Yu. S. Chilingaryan

    Лазерно-индуцированные термокапиллярные волны в изотропных и анизотропных жидкостях | Изв. НАН РА, Физика, 49(4), pp. 230–240, 2014

    M. R. Hakobyan, R. B. Alaverdyan, Yu. S.Chilingaryan, R. S. Hakobyan

    Gravitational and Thermocapillary Mechanisms of Hydrodynamic Motions in Liquid Crystals Induced by Laser with a Spatially Periodic Intensity Structure | J. Contemp. Phys., 49(3), pp. 110-118, 2014

    M. R. Hakobyan, R. B. Alaverdyan, R. S. Hakobyan, Yu. S. Chilingaryan

    Enhanced Physical Properties of Nematics Doped with Ferroelectric Nanoparticles | Armenian Journal of Physics, 7(1), pp. 11-18, 2014

    M. R. Hakobyan, R. B. Alaverdyan, Yu. S. Chilingaryan, R. S. Hakobyan

    Laser-induced thermocapillary waves in isotropic and anisotropic liquids | J. Contemp. Phys., 49(4), pp. 144–150, 2014

    R. B. Alaverdyan, H. Gharagulyan, M. S. Rafayelyan, A. H. Gevorgyan

    Spectral Properties of Light in Pho¬tonic Liquid Crystals Doped with Nanoparticles in the Presence of Induced Defects | Proceedings of ALPS'14, pp. 207-208, 2014

    M. R. Hakobyan, R. B. Alaverdyan, R. S. Hakobyan, Yu. S. Chilingaryan

    Volume Expansion Mechanism of Laser-Induced Hydrodynamic Reorientation | Armenian Journal of Physics, 7(1), 2014, pp. 19-27

    R. B. Alaverdyan, M. R. Hakobyan, R. S. Hakobyan

    Thermomechanical Effects in Hybrid and Cylindrical-Hybrid Oriented Nematic Liquid Crystals | Molecular Crystals and Liquid Crystals, 2014, Vol. 599, pp. 1-11

    M. R. Hakobyan, R. B. Alaverdyan, R. S. Hakobyan

    Thermomechanical Effects in Hybrid and Cylindrical-Hybrid Oriented Nematic Liquid Crystals | Mol. Cryst. and Liquid Cryst. 596(1), 152-162, 2014

    H. Grigoryan, H. Gharagulyan, M. S. Rafayelyan, A. H. Gevorgyan , R. B. Alaverdyan

    Theoretical and Experimental Investigation of Polarization and Spectral Properties of Light in Multilayer Cholesteric Liquid-Crystalline Systems | Proceedings of PHOTOPTICS 2013, p. 24

    R. B. Alaverdyan, T. K. Dadalyan

    Chiral photonic structures with anisotropic defect controlled by hydrodynamic flow | Armenian Journal of Physics, Vol. 6, No. 1, 2013, pp. 55-60

    R. B. Alaverdyan, T. K. Dadalyan, Yu. S. Chilingaryan

    Observation of two regions of selective light reflection from a thin film of a cholesteric liquid crystal | Quantum Electron, Vol. 43, № 5, 2013, p. 433-434

    R. B. Alaverdyan, T. K. Dadalyan, A. S. Karapetyan, T. M. Hovhannisyan, S. I. Hovhannisyan, Yu. S. Cհilingaryan

    Spectral investigation of chiral photonic structure with laser dye-doped isotropic polymer film | Proc. of SPIE , Vol. 8475,2012, p. 847518

    G. S. Gevorgyan, A. K. Alexanyan, R. S. Hakobyan, R. B. Alaverdyan

    Experimental study of laser induced orientational effects in twist and planar aligned azobenzene nematic liquid crystals | Mol. Cryst. Liq. Cryst., Vol. 559, pp. 91–96, 2012

    G. S. Gevorgyan, A. K. Aleksanyan, R. S. Hakobyan , R. B. Alaverdyan

    Experimental Study of Laser-Induced Orientational Effects in Twist and Planar Aligned Azobenzene Nematic Liquid Crystal | Molecular Crystals and Liquid Crystals. 2012, Vol. 559, Issue 1, pp. 91 – 96

    R. Alaverdyan, H. Gharagulyan, H. Grigoryan

    The investigation of the behavior of polarization of light passing through chiral liquid-crystalline photonic structures | Proceedings of SPIE, 2012, Vol. 8414, 841412

    R. S. Hakobyan, M. R. Hakobyan, G. S. Gevorgyan, R. B. Alaverdyan, A. K. Aleksanyan

    Some Light-Induced Orientational Effects in Nematic Liquid Crystals. Journal of Physics | Conference Series 2012, Vol. 350, 012034

    R. B. Alaverdyan, , T. K. Dadalyan, A. S. Karapetyan, N. S. Torosyan

    Luminescence spectrum thermal properties of Rhodamine 6G doped polymethyl metacrylate film sandwiched between cholesteric liquid crystal layers | Journal of Physics, Conference Series, 2012, Vol. 350, 012033

    G. S. Gevorgyan, A. K. Aleksanyan, R. S. Hakobyan , R.B. Alaverdyan

    Study of Laser-Induced Orientational Effects in Twist and Planar Aligned Azobenzene Nematic Liquid Crystals | Molecular Crystals and Liquid Crystals, 2012, Vol. 559, Issue 1, pp. 91–96

    R. B. Alaverdyan, A. H. Gevorgyan, H. Gharagulyan, H. Grigoryan

    Experimental Investigation of the Polarization Plane Rotation of Light in Cholesteric Liquid-Crystalline Film with an Anisotropic Defect Layer | Molecular Crystals and Liquid Crystals, 2012, Vol. 559, Iss. 1, pp. 23–30

    R. Alaverdyan, H. Gharagulyan, H. Grigoryan

    The investigation of the behaviour of polarization of light passing through chiral liquid-crystalline photonic structures | Proceedings of SPIE Vol. 8414 (SPIE, Bellingham, WA, 2012), 8414 12, pp.1-6

    R. B. Alaverdyan, T. K. Dadalyan

    Investigation of spectral properties of Rhodamine 6G doped polymer thin film and liquid crystalline multilayer structure | Book of abstracts of OLC 2011, Yerevan, p. 10

    R. B. Alaverdyan, T. K. Dadalyan, A. S. Karapetyan

    Luminescence spectrum thermal properties of Rhodamine 6G doped polymethyl metacrylate film sandwiched between cholesteric liquid crystal layers | Book of abstracts of international symposium on optics and its applications 2011, Yerevan, publishing of RAU, 2011, p. 98

    R. B. Alaverdyan, T. K. Dadalyan

    Experimental investigation of spectral peculiarities of multilayer system, consisting of dye doped polymer film sandwiched between two cholesteric liquid crystal layers | Book of abstracts, Laser Physics 2011, p. 36

    Г. С. Геворгян, Р. Б. Алавердян, Р. С. Акопян

    Лазерно-индуцированные нелинейные ориентационные явления в азобензольном нематическом жидком кристалле | Известия НАН Армении, Физика, т. 46, №4, с. 243-248, 2011

    R. B. Alaverdyan, T. K. Dadalyan, N. A. Hayrapetyan

    Study of cholesteric liquid crystal-rhodamine 6G doped polymethyl methacrylate thin film-cholesteric liquid crystal system | Proceedings of SPIE, 2011, Vol. 8114, 811418-1

    R. S. Hakobyan, R. B. Alaverdyan, G. S. Gevorgyan , A. A. Kirakosyan

    Light-Induced Thermomechanical Effect as a New Mechanism of Liquid Crystal’s Orientational Oprical Nonlinearity | JETP Letter, 92(7), pp. 504-506, 2010

    Р. Б. Алавердян, А. Л. Асланян, Г. С. Геворкян, В. Б. Пахалов

    Временная динамика директора НЖК в поле последовательности прямоугольных импульсов | Оптика и спектроско пия, 2010, т. 109, 4, с. 656-660

    R. B. Alaverdyan, K. R. Allakhverdyan, A. H. Gevorgyan, A. D. Chilingaryan, Yu. S. Chilingaryan

    Chiral Photonic Crystals with an Electrically Tunable Anisotropic Defect. Experiment and Theory | Technical Physics, 2010, Vol. 55, № 9, pp. 1317-1323

    R. S. Hakobyan, R. B. Alaverdyan, G. S. Gevorgyan, A. A. Kirakosyan

    Light-induced thermomechanical effect as a new mechanism of orientational optical nonlinearity in liquid crystals | JETP Letters, 2010, Vol. 92, № 7, pp. 457-459

    R. B. Alaverdyan, A. L. Aslanyan, L. S. Aslanyan, G. S. Gevorgyan, V. B. Pakhalov

    Time dynamics of the nematic liquid crystal director in the field of a sequence of rectangular puls | Optics and Spectroscopy, 2010, Vol. 109, № 4, pp. 608-612

    G. S. Gevorgyan, A. A. Kirakosyan, R. B. Alaverdyan, R. S. Hakobyan

    Experimental study of laser-induced thermomechanical effect and new type of orientational optical nonlinearity in twist aligned nematic liquid crystal | Int.Conf. , Laser Physics 2010, 12-15 October, Ashtarak,Armenia (2010),1B-1 / Proc. SPIE 7998, 799801 p.1 - 5, (2010

    Р. Б. Алавердян, А. А. Геворгян, К. Р. Аллахвердян, А. Д. Чилингарян , С. Ц. Нерсисян, Ю. С. Чилингарян

    Экспериментальное исследование эффекта селективного отражения света от слоя НЖК с индуцированной неоднородностью шага спирали | Изв. НАН РА, Физика, т.43, №3, стр. 174-181 (2008)

    Р. Б. Алавердян, А. Д. Чилингарян , А. А. Геворгян, Ю. С. Чилингарян

    Влияние толщины слоя и концентрации молекул красителя на усиление излучения в ХЖК | “Квантовая электроника”, т.38, №5, стр. 497-502 (2008)

    R. B. Alaverdyan, K. R. Allahverdyan, A. H. Gevorgyan, S. Ts. Nersisyan, A. D. Chilingaryan, Yu. S. Chilingaryan

    Selective reflection of light from a layer of cholesteric liquid crystal with induced inhomogeneity of helix pitch | Journal of Contemporary Phsics (Armenian Academy of Sciences), 2008, Vol. 43, № 3, pp. 109-113

    R. B. Alaverdyan, A. M. Grigoryan, Yu. S. Chilingaryan

    Convection in relatively thin layers of nematic liquid crystal | Journal of Contemporary Phsics (Armenian Academy of Sciences), 2008, Vol. 43, № 1, pp. 19-22

    R. B. Alaverdyan, A. A. Gevorgyan, A. D. Chilingaryan, Yu. S. Chilingaryan

    Features of the emission of chiral photonic crystals when local refraction is absent dand light is obliquely incident on the layer | Journal of Optical Technology, 2008, Vol. 75, No 8, pp. 479-484

    Р. Б. Алавердян, А. В. Варданян, А. Д. Чилингарян, С. Ц. Нерсисян, Ю. С. Чилингарян

    Управляемый тонкопле-ночный квазиволноводный лазер на красителе в ЖК матрице | Изв. НАН РА, Физика, т.42, №6Б, стр. 421-427 (2007)

    Vardan Margaryan, R. B. Alaverdyan, A L. Aslanyan, L S. Aslanyan , G S. Gevorgyan, E A. Santrosyan

    Experimental Investigation of Freedericksz Transition in Square Electric Pulse Sequence Field | Laser Science, OSA Technical Digest (CD), 2007, paper JSuA1

    R. B. Alaverdyan, A. V. Vardanyan, S. Ts. Nersisyan, A. D. Chilingaryan, Yu. S. Chilingaryan

    Controlled thin-film quasi-waveguide dye-laser in a liquid-crystal matrix | Journal of Contemporary Physics (Armenian Academy of Sciences), 2007, Vol. 42, № 6, pp. 277-281

    R. B. Alaverdyan, L. S. Aslanyan, V. V. Margaryan, E. A. Santrosyan, Yu. S. Chilingarian

    Dynamics of Freedericksz Transition in the Oscillating Electric Field | Mol. Cryst. Liq. Cryst., 2006, Vol. 453, pp. 15–27

    Алавердян Р. Б., Киракосян А. А., Нерсисян С. Ц., Сантросян Э. А., Чилингарян А. Д.

    Наблюдение эффекта светоиндуцированной переориентации нематических жидких кристаллов в поле лазерных импульсов: эффекты связанные с накоплением нелинейности | Изв. НАН РА, физика, 2005, т.40, №6, стр. 460-465

    Rafik S. Hakobyan, Roman B. Allahverdyan, , Samvel C. Nersisyan, Yuri S. Chilingaryan

    Excitation of convective motions and surface hydrodynamic soliton-type waves in liquid crystals by a Gaussian laser beam | Quantum Electronics, 2004, Vol. 34, № 3, pp. 267-271

    Акопян Р. С., Алавердян Р. Б., Аракелян А. Г., Нерсисян С. Ц., Саркисян К. М., Чилингарян Ю. С.

    Возбуждение поверхностных гидродинамических волн солитон¬ного типа на поверхности жидкого кристалла лазерным излучением с гауссовским попе-речным профилем | Изв. НАН РА, физика, 2004, т. 39, № 1, с. 44-52

    Р. Б. Алавердян, А. Г. Аракелян, С. Ц. Нерсисян, Э. А. Сантросян, K. М. Саркисян, Ю. С. Чилингарян

    Экспериментальное исследование деформации свободной поверхности НЖК, индуцированной гауссовским лазерным пучком | Труды конф. "Лазерная физика-2003", Аштарак, Арм., изд. Гитутюн, НАН РА, 2004, с.140-143

    R. S. Akopyan, R. B. Alaverdyan, A. G. Arakelyan, S. Ts. Nersisyan, K. M. Sarkisyan, Yu. S. Chilingarian

    Stimulation of convective motions and hydrodynamic orientational surface waves in liquid crystals by laser radiation with Gaussian cross distribution of intensity | Mol. Cryst. Liq. Cryst., 2004, Vol. 421, pp. 261-269

    Yu. S. Chilingaryan, R. B. Alaverdyan, A. G. Arakelyan, S. Ts. Nersisyan

    Exicitation of convective motions and hydrodynamical soliton-like surfase waves in liquid srystals by laser radiation with Gaussian transverce profile of intensity | “Kvantovaya Elektronica”. 2004. V 34 N 3, p. 267-271

    R. S. Akopyan, R. B. Alaverdyan, A. G. Arakelyan, G. L. Yesayan, S. Ts. Nersisyan

    Stimulation of convective motions and hydrodynamical soliton like surface waves in the liquid crystals by laser radiation with Gaussian cross distribution | Quantum Electronics, 34(3), 267-271 (2004)

    R. S. Akopyan, R. B. Alaverdyan, L. Kh. Muradyan, G. E. Seferyan, Yu. S. Chilingaryan

    Excitation of convective motions in isotropic and anisotropic liquids by light | Quantum Electron. 33/1, 81-89 (2003)

    R. S. Akopyan, R. B. Alaverdyan, L. Kh. Mouradyan, H. Ye. Seferyan, Yu. S. Chilingarian

    Light-driven convective motions in isotropic and anisotropic liquids | Quantum Electronics, v.33, No 1, 2003, pp. 81-89

    Акопян Р. С., Алавердян Р. Б., Аракелян А. Г., Есаян Г. Л., Нерсисян С. Ц., Чилингарян Ю. С.

    Возбуждение гидродинамических движений в жидких кристаллах механическими колебаниями | Изв. НАН РА, физика, 2003, т. 37, №2, с.107-109

    R. S. Akopyan, R. B . Alaverdyan, A. G. Arakelyan, G. L. Yesayan, S. Ts. Nersisyan, Yu. S. Chilingaryan

    Mechanical vibration driven hydrodynamical motions in liquid crystals | J. Contempt. Phys., v.37, No 5, 2002, pp. 107-113

    R. S. Akopyan, R. B. Alaverdyan, Yu. S. Chilingarian , H. Y. Seferyan

    Instability of Light-Drivn Convective Motions | Proceedings of SPIE, 2002, v. 4748, p.120-131

    R. S. Akopyan, R. B. Alaverdyan, Yu. S. Chilingarian, A. G. Arakelyan, H. Ye. Seferyan, S. Ts. Nersisyan

    Instabilities and stochasticity at the interaction of laser radiation with the liquid crystal-semiconductor boundaries | Int. conf. “Lasers 2001”. December 3-7, 2001, Tucson, Arizona, USA

    R. S. Akopyan, R. B. Alaverdyan, Yu. S. Chilingarian, H. Ye. Seferyan

    Instability of light-driven convective motions | Abstract of the international conference ICONO 2001, Minsk

    Akopyan R. S. , Alaverdyan R. B., Santrosian E. A. , Chilingarian Yu. S.

    Thermomechanical effects in the nematic liquid crystals | Journal of Appl. Physics, 2001, v. 90, N 7, pp. 3371-3376

    R. S. Akopyan, R. B. Alaverdian, Yu. S. Chilingarian, A. S. Vardanyan, H. Ye. Seferyan

    Hydrodynamic Instability in Case of Laser Induced Convective Motions | Abstract of the international Conference on “Chaos and Supercomputers 2000”, September 11-16, 2000, Nor-Amberd, Armenia

    R. S. Akopyan, R. B. Alaverdian, Yu. S. Chilingaryan, E. A. Santrosyan, H. Ye. Seferyan

    Thermomechanical Rotation of Cylindrical-Hybrid Oriented Nematic Liquid Crystal | Abstract of International Conference on “Conversion Potential of Armenia and ISTC Programs”, October 2-7, 2000, Yerevan

    R. S. Akopyan, R. B. Alaverdian, Yu. S. Chilingarian, A. S. Vardanian, H. Ye. Seferyan

    Observation and Investigation of Gravitational and Thermocapillary Convections and Hydrodynamic waves Induced by Spatially-Periodic Structure of Laser Radiation | Abstract of the International Conference on Lasers 2000, December 4-8, Albuquerque, New Mexico, USA

    R. S. Akopyan, R. B. Alaverdian, E. A. Santrosian, Yu. S. Chilingarian

    Hydrodynamic Oscillations in Nematics Due to the Laser-Induced Thermomechanical Effect | Abstract of the International Conference on Lasers 2000, December 4-8, Albuquerque, New Mexico, USA

    R. S. Akopyan, R. B. Alaverdyan, E. A. Santrosyan, Yu. S. Chilingaryan

    Experimental investigations of thermomechanical effects in NLC | J. Contemp. Phys., v.35, No 4, 2000, pp. 139-142

    R. S. Akopyan , R. B. Alaverdyan, E. A. Santrosian, Yu. S. Chilingarian

    Photoinduced thermomechanical effect in homogeneous nematics | Quantum Electronics, 2000, Vol. 30, № 7, pp. 653-654

    R. S. Akopyan, R. B. Alaverdyan, A. S. Vardanyan, Yu. S. Chilingaryan

    Hysteresis upon light-induced hydrodynamic reorientation of the director of a nematic liquid crystal | Quantum Electronics, 2000, Vol. 30, № 8, pp.745-746

    R. S. Akopyan, R. B. Alaverdian, E. A. Santrosyan, Yu. S. Chilingaryan

    Liqht induced thermomechanical effects in homogenous nematics | “Kvantovaya Electronica”, 2000 v. 30, p. 653-654

    R. S. Akopyan, R. B. Alaverdyan, Yu. S. Chilingarian, E. A. Santrosian

    Laser-induced thermomechanical effect in the nematic liquid crystal | Abstracts of the International Conference on Lasers', 1999, December 13-17, Le Chateau Frontenac Quebec, Quebec, Canada

    R. S. Akopyan, R. B. Alaverdyan, S. Ts. Nersisyan, E. A. Santrosyan, Yu. S. Chilingaryan

    Electro-induced thermomechanical effects in nematic liquid crystals | J. Contemp. Phys., v.34, No 3, 1999, pp.149-153

    R. S. Akopyan, R. B. Alaverdyan, S. Ts. Nersisyan, E. A. Santrosyan, Yu. S. Chilingaryan

    Electro-induced thermomechanical effects in nematic liquid crystals | J. Contemp. Phys., v.34, No 3, 1999, pp.149-153

    R. S. Akopyan, R. B. Alaverdyan, E. A. Santrosyan, S. T. Nersisyan, Yu. S. Chilingaryan

    Thermomechanical effect in a cylindrically-hybrid nematic liquid crystal | Technical Physics Letters, 1999, Vol. 25, № 3, pp. 237-238

    R. S. Akopyan, R. B. Alaverdyan, E. A. Santrosyan, S. Ts. Nersisyan, Yu. S. Chilingaryan

    Thermomechanical effect in a planar nematic induced by a quasistatic electric field | Technical Physics, 1999, Vol. 44, № 4, pp. 462-463

    R. S. Akopyan, R. B. Alaverdyan, Yu. S. Chilingarian, A. S. Vardanyan

    Laser-induced hydrodynamic effects in liquids and liquid crystals | Abstracts of the XVI International Conference on Coherent and Nonlinear Optics, Moscow, June 29 – July 3, 1998

    Akopyan R. S., Alaverdyan R. B., Oganisyan M. Zh., Chilingaryan Yu. S.

    Observation of the effect of light-induced hydrodynamic reorientation of nematic liquid crystals | Optics and spectroscopy, 1998, Vol. 84, № 5, pp. 685-687

    R. S. Akopyan, R. B. Alaverdyan, Yu. S. Chilingarian, A. S. Vardanyan

    Hysteresis behavior of light-induced hydrodynamic reorientation of liquid crystal director due to the direct volume expansion | Abstracts of the International Conference on Lasers' 97, 15-19 December, New Orleans, 1997

    R. S. Akopyan, R. B. Alaverdyan, Yu. S. Chilingarian, E. A. Santrosian

    Light-induced thermomechanical effect in nematics | Abstracts of the VII International Topical Meeting on Optics of Liquid Crystals (September 8-12, Heppenheim , Germany, 1997

    R. S. Akopyan, R. B. Alaverdyan, E. A. Santrosyan, Yu. S. Chilingaryan

    Thermomechanical effect in a hybrid-oriented nematic liquid crystal | Technical Physics Letters, 1997, Vol. 23, № 9, pp. 690-691

    R. S. Akopyan, R. B. Alaverdyan, E. A. Santrosyan, Yu. S. Chilingaryan

    Thermomechanical effect in hybrid-oriented nematic liquid crystal | Pisma v ZhTF v.23, No 17, pp. 77-81 (1997)

    R. S. Akopyan, R. B. Alaverdyan, V. E. Drnoyan, Yu. S. Chilingarian

    Light wave interaction with escaped-radial nematic | Abstracts of the European Conference on Lasers and Electro-optics (CLEO), 28 August – 2 September, Amsterdam, 1994

    R. S. Akopyan, R. B. Alaverdyan, V. E. Drnoyan, Yu. S. Chilingarian

    Observation of laser-induced hydrodynamic reorientation of liquid crystals | Abstracts of the International Conference on Lasers' 94, 12 December, McLean, USA, 1994

    R. S. Akopyan, R. B. Alaverdyan, V. E. Drnoyan, Yu. S. Chilingarian

    Light wave interaction with escaped-radial liquid crystal | Abstracts of the International Conference on Lasers' 94, 12 December, McLean, USA, p.235, 1994

    R. B. Alaverdyan, V. E. Drnoyan, T. V. Galstian, S. M. Arakelyan, Yu. S. Chilingaryan

    Laser-induced hydrodynamical instabilities and optical bistability in liquid crystal: the theory and experiment | JETP, v.103, No 4, 1993, pp. 1270-1286

    R. B. Alaverdyan, V. E. Drnoyan, T. V. Galstian, S. M. Arakelyan, Yu. S. Chilingaryan

    Observation of light-induced hydrodynamical instabilities in nematic liquid crystal in the field of single-mode laser beam | JETP let., v.55, No 7, 1992, pp.392-397

    R. B. Alaverdyan, S. M. Arakelyan, Yu. S. Chilingaryan, A. P. Alodjants, V. E. Drnoyan, A. S. Karayan

    Laser-induced phase transition in liquid crystals and distributed feedback – fluctuations, energy exchange and instabilities squared polarized states and intensity correlations | Proceedings SPIE, v.1402, 1991, p. 175-191

    R. B. Alaverdyan, S. M. Arakelyan, L. P. Gevorkyan, B. A. Makarov, T. A. Papazyan, Yu. S. Chilingaryan

    Large-aperture compression of picosecond laser pulses and band-width-limited radiation arising in a spatially periodic medium: theory and experiment | Phys. Lett., v.151, № 6,7, 1990, p. 317-324

    R. B. Alaverdian, S. M. Arakelyan, A. S. Karayan, Yu. S. Chilingaryan

    Experimental demonstration of large aperture compression of short laser pulses in Bragg resonance condition | Proc. of intern. Conf. On Lasers’, 1989, USA, p. 317

    R. B. Alaverdyan, S. M. Arakelyan, Yu. S. Chilingaryan, G. L. Grigoryan, A. S. Karayan, S. Ts. Nersissyan, V. E. Drnoyan

    Light-induced modulated structures, intrinsic optical multistability and instabilities for the competitive wave interactions in liquid crystals | J.Phys. (Fr), v.50, 1989, p. 1393-1415

    R. B. Alaverdyan, S. M. Arakelyan, Yu. S. Chilingaryan, A. S. Karayan, V. E. Drnoyan

    Light-induced modulated structures, intrinsic optical multistability and instabilities for the competitive wave interaction in liquid crystals | Rostocker Physikalishe Manuskripte, v.13, 1989, p. 15-24

    R. S. Akopyan, R. B. Alaverdyan, Yu. S. Chilingarian

    Forced convection in liquid due to the pressure of second approximation of acoustic wave | Akust. Zhurnal, v.34, No 2, 1988, pp. 336-337

    S. M. Arakelian, R. B. Alaverdian, A. S. Karaian, Yu. S. Chilingaryan

    Intrinsic OB and instabilities In LC | Laser optics of Con.Matter, Ple-num Press, N V, p. 519-526, 1988

    R. B. Alaverdyan, S. M. Arakelyan, A. S. Karayan, Yu. S. Chilingaryan

    Light induced phase transitions and intrinsic OB and instabilities in LC | J. de Phys. Cdl. C2, Supple. N6, v. 49, 1988, p. 2499-2504

    R. B. Alaverdyan, S. M. Arakelyan, A. S. Karayan, Yu. S. Chilingaryan

    Laser optics of condensed mater/ Ed by J.L.Birman, P.Commins N.Y. | Plenum Press, 1988, p. 519-526

    R. S. Akopyan, R. B. Alaverdyan, Yu. S. Chilingarian

    Orientational action of light on liquid crystal near the threshold of acoustic wave instability | Pis’ma ZhTF, v.12, No 14, 1986, 858-862

    R. S. Akopyan, R. B. Alaverdyan, J. Kh. Grigoryan, Yu. S. Chilingaryan

    Laser radiation generation in the system dye-liquid crystal: in the region of phase transition; at the planar action | Abstracts of the Х Union conference. C&NLO, Kiev, PP. 256-257, 1980
     

    Thesis

    A. H. Gevorgyan, M. S. Rafayelyan, Zh. V. Ninoyan, Hermine Gharaguiyan, R. B. Alaverdjan

    Asymmetric Transmission liquid-crystals of Two Cholesterics with Different Pitches and Chiralities | Optics-2016, էջ 72, Հայաստան |

    A. H. Gevorgyan, H. Gharagulyan, M. S. Rafayelyan, R. B. Alaverdyan

    Experimental and Theoretical Investigation of Polarization Plane Rotation of Light in Nanoparticle-Enriched Chiral liquid-crystaliine Photonic Structures with an Anisotropic Defect Layer | Optics 2015, p. 124-125, Yerevan-Ashtarak |

    H. Gharagulyan, M. S. Rafayelyan, A. H. Gevorgyan, R. B. Alaverdyan

    Experimental and Theoretical Investigation of Polarization Plane Rotation of Light in Nanoparticle-Enriched Chiral Liquid-Crystalline Photonic Structures with an Anisotropic Defect Layer | Book of Abstracts of OPTICS-2015, pp. 124-125

    H. Gharagulyan, M. S. Rafayelyan, A. H. Gevorgyan, R. B. Alaverdyan

    Spectral Properties of Light in Photonic Liquid Crystals Doped with Nanoparticles in the Presence of Induced Defect | Proceedings of ALPS'14, pp. 207-208, 2014

    H. Gharagulyan, H. Grigoryan, M. S. Rafayelyan, A. H. Gevorgyan , R. B. Alaverdyan

    Reflection and Transmission Properties of Light in Chiral Liquid-Crystalline Photonic Structures with Pitch Gradient and the Phenoomenon of Nonreciprocity | Proceedings of PHOTOPTICS 2013, p. 19

    H. Gharagulyan, H.Grigoryan, M. S. Rafayelyan, A. H. Gevorgyan, R. B. Alaverdyan

    Rotation of Polarization Plane of Light in Chiral Liquid Crystals enriched with Nanoparticles in case of induced Defect | Electronic book of abstract of “IMID 2013”, p. 332, 2013

    H. Gharagulyan, H. Grigoryan, M. S. Rafayelyan, N. R. Grigoryan, A. H. Gevorgyan, R. B. Alaverdyan

    The phenomenon of nonreciprocity in chiral structures with pitch gradient in case of induced defects | Book of Abstract of “IONS 2013”, p. 53, 2013

    R. B. Alaverdyan, T. K. Dadalyan, T. S. Hovhannisyan

    Spectral investigation of chiral photonic structure with laser dye doped isotropic polymer film | Book of Abstracts of International School of Frontiers in Optics, Yerevan, 2011, p. 49

    R. B. Alaverdyan, A. L. Aslanyan, L.S. Aslanyan, H. S. Gharagulyan

    The Peculiarities of Spatial Dynamics of Light Polarization in One-Dimensional Liquid-Crystalline Photonic Structures | Book of Abstracts of OLC 2011, p. 5